19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Gold reacts with aqua regia forming
White phosphorus is more reactive than N₂ because
Phosphorus reacts with concentrated HNO₃ to produce
Iodine reacts with concentrated HNO₃ to produce
Which of the following statements is correct regarding the behaviour of white phosphorus?
Syrupy H₃PO₄ is viscous due to
Which of the following complexes is responsible for the brown colour of the ring formed in the ring test for the nitrates? (a)[Fe(CN)₅NO]3+ (b)[Fe(H₂O)₄NO]2+NO⁺
Which of the following oxides of nitrogen is solid?
FeSO₄ is a very good absorber for NO. The number of unpaired electrons in the new compound formed by this process is
Which of the following oxides of nitrogen is a mixed anhydride of two acids?
Ammonia, on reaction with excess of chlorine, gives :
Ammonia gas can be dried by
A solution of sodium in liquid ammonia is blue due to the presence of
Mg (NH₄)PO₄ and Na(NH₄) HPO₄ are heated separately. Which of the following statements is/are completely incorrect regarding the product obtained in the above process? (I) Same gas is evolved (II) Same type of phosphat…
In NO ion, the number of bond pairs and lone pair of electrons on nitrogen atom are
Liquid N₂O₄ self-ionizes as
Small quantities of very pure N₂ is obtained by carefully warming
Which of the following compounds does not give N₂ on heating?
N₂ is commercially prepared by
The reaction between urea and nitrous acid produces
Which of the following reactions is used in the preparation of N₂?
Which of the following reactions gives reasonably pure NO?
Which of the following oxides is the most acidic?
An aqueous solution of ammonia consists of
Which of the following gases is the least reactive?